Stock Price Index and Exchange Rate Nexus in African Markets

This paper examines the relationship between stock price index and exchange rate in six African markets using monthly data for the period January 2007 to October 2015. A quantile regression approach is used. This methodology is shown to perform better than the ordinary least squares estimators, particularly when the conditional distribution is heterogeneous. Our empirical evidence reveals an interesting pattern in the association of these two financial markets in Africa, which shows that the negative relationship between stock and foreign exchange markets is more apparent when exchange rates are extremely low or high. The negative relationship between the two variables is in line with the portfolio balance effect.     

亚洲金融区域主义的政治逻辑

本文探讨了合法性与权力在金融区域主义方面的因果效应。当前以G7为主导的全球体制中合法性的明显缺失和国家间权力格局的变化影响了东亚的政策决策。东亚国家寻求抗衡性的战略,也即在保持着与以G7为中心的全球金融体制合作关系的情况下,通过发展自身的区域性制度(或其他潜在方案)以避免对前者的过度依赖。上述观察意味着,除非现存全球金融体制解决了合法性问题,并且当前(有利于东亚的)权力转移发生逆转,亚洲新兴经济体不会将应对国际金融问题的全部希望寄于全球性的解决方案。     

Order imbalance and stock returns: Evidence from China

We investigate the relation between daily order imbalance and return in the Chinese stock markets of Shenzhen and Shanghai. Prior studies have found that daily order imbalance is predictive of subsequent returns. On the two Chinese exchanges we find the autocorrelation in order imbalances is similar to that of the New York Stock Exchange as reported by Chordia and Subrahmanyam [Chordia, T., & Subrahmanyam, A. (2004). Order imbalance and individual stock returns: Theory and evidence. Journal of Financial Economics, 72, 485–518]. We also find a strong contemporaneous relation between daily order imbalances and returns. However, we do not find evidence that order imbalances predict subsequent returns. We attribute the difference in predicative power to differences in trading mechanisms on the two exchanges and to differences in the share turnover rates.     

小企业加入非对称联盟动机对权力配置与绩效的影响——以水环境治理行业为例

以往有关联盟绩效的研究很少关注企业动机通过权力配置对绩效的多重影响,以及不同动机和权力配置的影响差异。以资源依赖理论和议价能力理论为基础,以中国245家水环境治理企业为样本,研究小企业加入联盟的动机通过感知位置权力与能力权力的配置,对非对称联盟创新绩效和财务绩效的联合效应。结果表明,战略动机通过感知权利互补和平衡促进技术创新;成本动机通过感知权利互补影响财务绩效,但无法通过感知权利平衡影响财务绩效。     

长江经济带生态保护效率与科技服务业发展效率时空关联分析

建立超效率DEA模型并运用视窗分析测算2010-2017年长江经济带11个省市生态保护效率与科技服务业发展效率,通过空间计量模型分析后者对前者的影响。结果表明：科研技术服务业效率对当地及周边地区的生态保护效率具有正向影响;科技资本服务业效率对当地生态保护效率具有正向影响,但对其周边地区有抑制效应;科技宣传服务业未对生态保护效率产生显著影响。据此,提出长江经济带通过提高科技服务业效率改进生态保护效率的对策。     

技术权力、组织间信任影响领导行为的跨案例研究

在技术创新网络中,非对称的技术权力和不同程度的组织间信任引致了核心企业对合作企业采取不同领导行为。从心理定位视角出发,基于技术权力和组织间信任两个变量提出核心企业的4种领导行为——技术锁定、技术防御、技术扶持与技术标准,通过跨案例研究,分析论证了这4种领导行为,并对合作过程中核心企业的领导行为进行了科学解释,以帮助合作企业科学预测领导行为,进而提高运行绩效和网络地位。     

集群中核心企业网络权力对配套企业合作行为的影响

网络权力是企业网络中的热点问题之一。探讨了在中国集群情境下,核心企业网络权力对与之合作的配套企业合作行为的影响,同时引入关系资本,探究其调节效应。运用理论与实证研究方法,基于对238份企业调查数据的分析,研究得出：核心企业知识权力、地位权力及感召权力均与配套企业合作行为正相关;此外,关系资本正向调节核心企业网络权力与配套企业合作行为之间的关系。     

长江经济带土地出让与城镇化质量耦合协调研究

土地出让与城镇化质量作为城镇化的主要依托和核心追求,二者的关系影响到城市的可持续发展。以长江经济带为例,构建土地出让与城镇化质量综合评价指标体系,利用熵值法和耦合协调模型对二者耦合协调的时空差异做出实证研究,并利用ArcGIS将其空间显化。结果表明：研究期内长江经济带土地出让与城镇化质量的协调度呈现先增后减再增趋势;二者的协调度自西向东逐步增加,耦合度无明显分布规律,总体呈高水平耦合状态;土地出让与城镇化质量的协调度在城市群间的差异显著,但城市群内部的差异逐步减小。从土地出让与城镇化质量的耦合协调发展的视角,为实现城市健康可持续的发展提出政策建议。     

供应商集中、公司治理与企业价值 ——基于我国A股制造业上市公司数据

本文通过选取2010—2017年我国A股制造业上市公司的数据,先研究公司供应商集中对于公司价值的直接影响,结论显示公司供应商集中对于企业价值有着负面的影响;然后在进一步研究中,探究了公司治理相关因素以及面临的融资约束情况对于公司供应商集中与公司价值关系的调节作用。实证结果显示,产权性质以及董事会独立性会对两者的关系产生影响;股东间的相互关联以及对于高管薪酬激励都对公司供应商集中与公司价值的关系有着负向的调节作用。与此同时公司面临的融资约束越小,公司供应商集中对于公司价值的负面效应越弱;最后利用多重中介效应模型探究了供应商集中的作用机制。     

How are Africa's emerging stock markets related to advanced markets? Evidence from copulas

The finance literature provides ample evidence that diversification benefits hinges on dependence between assets returns. A notable feature of the recent financial crisis is the extent to which assets that had hitherto moved mostly independently suddenly moved together resulting in joint losses in most advanced markets. This provides grounds to uncover the relative potential of African markets to provide diversification benefits by means of their correlation with advanced markets. Therefore, we examine the dependence structure between advanced and emerging African stock markets using copulas. Several findings are documented. First, dependence is time-varying and weak for most African markets, except South Africa. Second, we find evidence of asymmetric dependence, suggesting that stock return comovement varies in bearish and bullish markets. Third, extreme downward stock price movements in the advanced markets do not have significant spillover effects on Africa’s emerging stock markets. Our results, implying that African markets, with the exception of South Africa, are immune to risk spillover from advanced markets, improves the extant literature and have implications for portfolio diversification and risk management.